Gear-wheel.



R. G. BLOOMFIELD.

GEAR WHEEL.

APPLICATION FILED JAN.17 1910.

9753438 Patented Nov. 15,1910.

Snow Wot iresrares -a'renr RUSSELL BLOOMFIELD, OF CINCINNATI, OHIf).

GEAR-WHEEL.

' To all-whom it may concern} v c 1 Be it known that I, RUSSELL C Broom-FIELD, a citizen of the United States, resid- 'ing atfCincinnati, in thecounty of Hamilton 5 and State of Ohio, have invented 'a new and usefulGear-"Wheel, of which the following is a specification. I

This invention relates to gear wheels which are provided with a rimconsisting of removabl sections, and-it has for its object to provide ina Wheel of this kind novel and improved means for securing the rimsections, .so that they can be readily removed Without removing the mainbody of the wheel from the axle or shaft. Another object of theinvention is to pro- Ividea gear wheel of the kind stated which isprovided with two series of removable sections arranged side by. side-onthe main body of the wheel, so that in case the teeth of any one of thesections become badly worn on one side, such sections may be reversed toobtain'additional wear from the other'side pf the teeth.

WVith the herein stated obj ects in view, 'the invention consists in anovel construction and arrangement of parts to be hereinafterdescribedand claimed, and in order that the same may be betterunderstood, reference is had to the accompanying drawing, in

. whichm ;v

' Figure '1 is a face View of a gear wheel constructed in accordancewith the present invention. Fig. 2 is an edge view. Fig..3-'

is a cross s'ection on'the line 3.3 of Fig. 1.

Referring more particularly to the drawing, the main body of the wheelcomprises a hub 5, and a. web 6 formed with an enlarged rim 7. Thiswheel body is designed, pref- 40; erably, to be forced on the shaftor,axle by hydraulic pressure, thewheel being intended more especiallyfor heavy electric service, al-' though not limited to such use. The rim7 is of a width sufiicient to support the toothed segments 8- which-formthe detachable rim section." Two series ofseg- 'ments are provided, theybeing arranged side by side on the rim 7, with the teeth of therespective series in proper alinementn ,Each series is composed two ormore segments, according to the size of thewheel.

-,Wi th the remainder of the segments.

advantage of providing two seriesof seg-.

Specification of Letters Patent." Patented Nov. 15, 1910. Applicationfiled January, 17, 1910. Serial No. 538,520.

The joints between the'segments are broken,

so that the joints between the segments of- The segments of one seriesare secured to the segments of the other series by bolts 9 passingtransverselv theretnrough, am. to

prevent the segments from slipping around on therim7, bolts or pins 10areemployed,

said bolts or pins 'assing thrOugh-transverse bolt holes ma e partly inthe periphery of thei'im 7, and partly in the contigu-' .ous surface ofthe segments.

The periphery of the rim 7' is-made'slightly higher 'atthe center than.at the edges, and

the under surface 'of the segments 8 is beveled-toward the center to fitthe rim. With this construction it will be impossible for the segmentsto sli off the rim sidewise after the bolts 9' are in place, and also,when" the bolts are drawn tight, they force the segments against thebeveled surfaces of the rim 7, .the friction between the partspreventing slipping when power is applied.

The advantages of the herein described structure are that the'wheel canbe cheaply on the axle or "shaft it need never be re,-' moved,the,segments 8 being readily removable from the main b'gdy of theWheel,with.- out'disturbing the latter on the shaft or axle.

A worn out segment can be readily re- -moved, and replaced by a new one,and in case of abrokep tooth in a segment, such segment can be replacedwithout. interfel i ng he ments a'rrangedside by side on the rim 7 isthat 'in'case the'teeth of any of the segments becomebadly Worn on oneside, said segments .can be reversed, or placed on the other side of thewheel thus -obtaining additional wear from theother sides of the teeth.j Y

.What is claimed is:

1.; A gear wheel comprising a main body,

and a rim consisting of a series of removable sections mounted on theperiphery of the main body,said periphery beingbeveled in opposite.directions from the center, and the contiguous surface ofthe rim being'manufactured, and after it has been pressed shaped to fit 'said beveledsurfaces, and means for locking the rim against turning on the mainbody.

2. A gear Wheel comprising a main body, 5 anda rim consisting of aseries of sections arranged side by side on the periphery of the mainbody, said periphery being beveled from its center, and the contiguoussurfaces of the rim sections being shaped to fit the 0 beveled surfaceof the periphery, means for clamping the rim sections to said beveledsurface, and means for locking the rim against turning on the main body.In testimony that I claim the foregoing as my own, I have hereto affixedmy signature 15 in the .presence of two Witnesses.

' RUSSELL O. BLOOMFIELD.

Witnesses:

LEROY BROOKS, J r., 13.8. SAW'rELtE.

